samba - Dec 1999 - File Permission Setup

Dear,

Is it possible I can setup so that the file/dir permission will follow
whatever the dir has.  For example,

If a user is writing a file to /home/user/public_html, and the public_html
permission is 755 (rwxr-xr-x), then whatever files writing to the dir will
have 644 (rw-r--r--) permission.

If a user is writing a file to /home/user, and the public_html permission is
711 (rwx--x--x), then whatever files writing to the dir will have 600
(rw-------) permission.

Best,
Alex